Paper blank for paper bottles and the like



Oct. 15, 1935. A, BODOR Er 2,017,810

PAPER BLANK FOR PAPER BOTTLES AND THE LIKE Filed March 9, 1935 6'.BODOR. A. B.KOCH.

Patented Oct. 15, 1935 PAPER BLANK roa 'PAPEB, BOTTLES AND m LIKE AndrewBodor, Newark,

N. J., and Lydia B. Koch,

New York, N. Y., assignors to Reinforced Paper Bottle Corporation, NewYork, N. Y., a corporation of Delaware Application March 9,

1 Claim.

Our invention relates to improvements in paper blanks for paper bottlesand the like, and the object of the invention is to ensure of the outerend edge of the blank hugging the body of the blank when wound spirallyso that it will securely adhere when adhesive is applied thereto, and itconsists essentially in forming a series of dents on the inner face ofthe blank adjacent its outer 10 end edge so that such portion will tendto curl inward towards the contiguous face of the spirally wound blankwhen softened by adhesive by which it is to be secured.

Fig. 1 is a plan view of the blank.

Fig. 2 is a perspective view of the blank wound spirally having itsouter end edge secured to the body of the blank.

Flg. 3 is an enlarged fragmentary view of a portion of the blank priorto its end edge being finally secured.

Fig. 4 is an enlarged sectional view through the end portion of theblank showing the dents formed therein.

Fig. 5 is a similar view to Fig. 4 showing the 25 end edge curled inwardin the position it assumes and softened by adhesive applied thereto.

In the drawing like letters of reference indicate corresponding parts ineach figure.

I indicates a paper blank-provided at its end edge I with a series ofparallel rows of dents 2 1933, Serial No. 660,089

by which the fibre of the paper is broken, formed so that the concavityof the dent is on the inside face of the blank as clearly indicated inFig. 4. When adhesive is applied to this portion of the blank it tendsto curl inward as indicated in Fig. 5,

so that when the blank is wound spirally as indicated in Fig. 2, thedented end edge of the blank will hug closely to the surface of thespirally wound blank and, therefore, when it is pressed into contacttherewith will fit closely thereto. m

'Although we show the blank with dents at the one edge only it may beprovided with dents throughout its entire surface.

What we claim as our invention is:

A paper blank for paper bottles wound convolutely into a pluralthickness and having a series of indentations formed up adjacent theouter edge of the blank and on the inside face which lies against themain body to'such a degree that the fibre of the paper is broken to suchan extent that when adhesive is applied thereunto just prior to itsbeing wound convolutely into a plural thickness to form a paper bottlethe indented edge will curve and conform of its own accord to the curvedouter surface of the convolutely wound body portion of the blank.

ANDREW 3013012,. LYDIA B. KOCH.

